Prosecution Insights
Last updated: October 25, 2026

Orbsen Therapeutics Limited

Technology area: Biotechnology & Pharmaceuticals

2 pending office actions • 2 art units • 2 examiners • 0 of 2 (0%) have an AI response strategy ready

Analysis

Orbsen Therapeutics Limited is active in the Biotechnology & Pharmaceuticals technology area with 2 pending office actions. These actions are assigned to 2 distinct examiners, ensuring that each matter is under independent review. The workload is also divided between 2 distinct art units, which reflects a breadth of technical subject matter within the pharmaceutical domain. This distribution requires the applicant to monitor different examination styles simultaneously while maintaining a consistent overall strategy for the portfolio.

KNIGHT, TERESA E is the busiest examiner for the company, who is responsible for 1 busiest examiner pending office action. The remaining pending action is assigned to the other distinct examiner. Because the portfolio is split across 2 distinct art units, the prosecution strategy may need to account for varying examination standards and timelines typical of different pharmaceutical classifications. Practitioners should be prepared to address the specific concerns of separate officials, even though the technical focus remains within the biotechnology field. The presence of multiple units indicates that the company's applications are classified under different categories, each with its own set of prior art.

Written from this page's own data; every figure is computed from USPTO records and verified before publication.

Portfolio Summary

2
Total Pending OAs
2
Non-Final OAs
0
Final Rejections
0
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 1 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

0
Overdue
1
Due this week
0
Due this month
0
Due in next 60 days
0
Due later

Case Difficulty Mix

Difficulty is derived from the rejection statutes on the most recent pending office action. §101-driven and multi-statute cases are graded Hard; §112-only and obviousness-type double-patenting cases are graded Easy; everything else is Medium. "Unknown" means we have not yet parsed a statute for that office action.

1
Hard (50%)
0
Medium (0%)
1
Easy (50%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§101 + other1 (50%)
Double-patenting only1 (50%)

Industry Mix

How the docket's pending cases split across USPTO tech-center bands.

2
Life Sciences
100% of docket
0
Information Tech
0% of docket
0
Communications
0% of docket
0
Semiconductors
0% of docket
0
Mechanical / Eng
0% of docket
0
Business / Other
0% of docket

Time-on-OA Estimate

Manual office-action response work runs about 10 hours per case. The time-saved bands below show what IP Author's prosecution pipeline typically delivers — a conservative 20% on the low end, 35% in the middle, 50% on the high end.

20 h
Manual time on pending OAs
4 h
Time saved (low, 20%)
7 h
Time saved (mid, 35%)
0.2 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
KNIGHT, TERESA E 1 66.1% +48.1%
SPENCE, JENNIFER SUZANNE 1 66.9% +46.0%

Hard Cases (1)

Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 1 ordered by deadline are shown.

App #TitleExaminerDue in
18425997 SDC-2 EXOSOME COMPOSITIONS AND METHODS OF ISOLATION AND USE SPENCE, JENNIFER SUZANNE 7d

Interview Candidates (2)

Cases in front of an examiner whose interview lift is 10 percentage points or more — i.e. interviewed cases historically resolve more favorably than non-interviewed ones. The top 2 ordered by deadline are shown.

App #TitleExaminerDue in
18425997 SDC-2 EXOSOME COMPOSITIONS AND METHODS OF ISOLATION AND USE SPENCE, JENNIFER SUZANNE 7d
18599002 STROMAL STEM CELLS KNIGHT, TERESA E —

Top Art Units

Art UnitApps
1634 1
1633 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
18599002 STROMAL STEM CELLS KNIGHT, TERESA E 1634 DP Non-Final OA — Pending Mar 07, 2024
18425997 SDC-2 EXOSOME COMPOSITIONS AND METHODS OF ISOLATION AND USE SPENCE, JENNIFER SUZANNE 1633 §101§103Other Non-Final OA 7d Pending Jan 29, 2024

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Frequently Asked Questions

How many pending USPTO office actions does Orbsen Therapeutics Limited have?

Orbsen Therapeutics Limited has 2 pending office actions as of October 2026, spread across 2 art units and 2 examiners.

Which USPTO examiner handles the most Orbsen Therapeutics Limited applications?

Teresa E Knight has the most, with 1 of Orbsen Therapeutics Limited's pending office actions.

What technology area are Orbsen Therapeutics Limited's patent applications in?

Mostly Biotechnology & Pharmaceuticals (USPTO Tech Center 1600), based on where its pending office actions are examined.

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